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strength × 35training × 8
kicking × 6
recommendation × 5
flexibility × 5
power × 5
tae-kwon-do × 4
judo × 4
brazilian-jiu-jitsu × 4
technique × 4
health × 4
stretching × 4
punching × 3
exercise × 3
boxing × 2
mixed-martial-arts × 2
injury × 2
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striking × 2
weight-lifting × 2
speed × 2
karate × 1
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kickboxing × 1
